| UCHA Consultants Limited | Private company limited by shares | Live |
| uChallenge Hong Kong Limited | Private company limited by shares | Dissolved |
| U-CHAMP TECHNOLOGY GROUP LIMITED | | Live |
| U-CHAMP TECHNOLOGY GROUP LIMITED | | Live |
| U-CHANCE LIMITED | Private company limited by shares | Live |
| Uchange Company Limited | Private company limited by shares | Live |
| UCHARGE LIMITED | Private company limited by shares | Live |
| UCHARM INVESTMENTS LIMITED | Private company limited by shares | Live |
| U-Charm Manpower Limited | | Live |
| U-charm Times Limited | Private company limited by shares | Live |
| Uchat Limited | Private company limited by shares | Live |
| UCHATWORLD LIMITED | Private company limited by shares | Live |